公开(公告)号：US4529430A

公开(公告)日：1985-07-16

申请号：US502926

申请日：1983-06-10

申请人： Vladislav B. Lazarev ,  Georgy P. Panasjuk ,  Marina N. Danchevskaya ,  Vladimir M. Gavrilko ,  Valery A. Kreisberg ,  Galina P. Budova ,  Sergei N. Torbin ,  Igor L. Voroshilov

发明人： Vladislav B. Lazarev ,  Georgy P. Panasjuk ,  Marina N. Danchevskaya ,  Vladimir M. Gavrilko ,  Valery A. Kreisberg ,  Galina P. Budova ,  Sergei N. Torbin ,  Igor L. Voroshilov

IPC分类号： C01B33/12 ,  C03C1/00 ,  C04B35/14 ,  C30B7/00

CPC分类号： C04B35/14 ,  C01B33/12 ,  C03C1/00 ,  C30B29/18 ,  C30B7/00

摘要： The present invention relates to a process for producing a fine-crystalline .alpha.-quartz with a crystal size of from 0.08 to 0.8 mm.The process comprises crystallization of amorphous silica in the atmosphere of water vapors in the presence of a crystallization promotor--a surface-active nitrogen-containing substance possessing basic properties in an amount of from 1.times.10.sup.-3 to 1% by weight of amorphous silica at a temperature within the range of from 300.degree. to 500.degree. C. under a pressure of from 20 to 400 atm for 6 to 100 hours.The process of the present invention is simple as regards its technology and equipment. The resulting product is noted for a low content of impurities and is fit for the manufacture of high-quality quartz glass and quartz ceramics.

摘要翻译： 本发明涉及一种晶体尺寸为0.08〜0.8mm的细晶α-石英的制造方法。 该方法包括在结晶促进剂存在下在水蒸气气氛中结晶无定形二氧化硅 - 具有1×10 -3至1重量％无定形二氧化硅的基本性质的表面活性含氮物质 温度在300〜500℃的范围内，在20〜400atm的压力下进行6〜100小时。 本发明的方法在技术和设备方面是简单的。 所得到的产品注意到低杂质含量，适用于制造高品质石英玻璃和石英陶瓷。